Valve for gas-meters.



N0. 637,424. Patented Nov. 2|, |899.

J. SEYMOUR.

VALVE FOR GAS METERS.

(Application filed May 3, 1899.) (No Model.)

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JOHN SEYMOUR, OF BRAMPTON, CANADA.

VALVE FOR GAS-METERS.

SPECIFICATION forming part of Letters Patent No. 637,424, dated November21, 1899. Application filed May 3, 1899. Serial No. 715,413. (Nomodell.)

T0 all whom/ it nung concern:

Be it known that I, J oHN SEYMOUR, manager, of the town of Brampton, inthe county of Peel and Province of Ontario,Oanada, have invented certainnew and useful Improvements in Valves for Gas-Meters, of which thefollowing is a specification.

The object of my invention is to simplify the mechanism for controllingthe passage of gas in the meter and to make it readily removable forrepairs; and it consists, essentially, of a valve-seat having detachableconnections with the gas-spaces of the meter, the

inlet-pipe, and the outlet-pipe, and of a ro tary valve, the parts ofthe valve-seat and valve veing provided with suitable ports and soshaped that the ports to the gas-spaces of the meter are successivelyplaced alternately in connection with the inlet and outlet pipes of themeter by the rotation of the valve. The standard supporting themechanism for rotating the valve is also preferably detachably securedto the meter, and the parts are constructed in detail substantially ashereinat'ter more specifically described and then definitely claimed.

Figure l is a perspective View of a portion of a gas-meter provided withmy improved valve. Fig. 2 is a vertical sectional elevation of thevalve. Fig. 3 is a plan of the same with parts broken away to show theinterior construction. Fig. t is a perspective view of the valve. Fig. 5is an inverted perspective of the cap.

In the drawings like letters of reference indicate corresponding partsin the different figures.

Although my invention relates solely to the construction of the valveand its method of connection, I will briefly describe those portions ofthe meter immediately connected therewith.

A are the Hag-wires, which derive a rocking motion from the diaphragmsof the meter in any well-known manner. Arms B are rigidly connected tothe upper ends of the nag-wires. The other ends ofv these arms arepivotally connected to the links O, which themselves have an adjustablepivoted connection to the tangent D, which is rigidly secured to theupper end of the valve-spindle E. From this valve-spindle theindicator-spindle F- derives its motion by means of the worm-gearing G.Those skilled in the manufacture of meters will readily understand thatby the rocking of the flag-wires a rotary motion is imparted to thevalve-spindle E. This valve-spindle, as well as the inner end of theindicatorspindle, is journaled in a bracket-standard H, which isdetachably secured, as shown, to the bottom of the upper portion of themeter. The lower end of the valve-spindle E rests in a step a, formed inthe top ot' the valve I of the valve-seat J.

It is of course understood that in dry meters using diaphragmeconnections have to be provided to convey the inflowing gas from theinlet-pipe to the inside and outside of each diaphragm, thus in atwo-diaphragm meter necessitating four connections,- which must bealternately connected with the inletpipe from the main and theoutlet-pipe to the house-service.

In Fig. 1, K is the inlet-pipe, M the outletpipe, and L, L', L, and L"the connectingpipes above referred to. As there is absolutely no noveltyin their connections to the inside and outside of the diaphragme and assuch connections form no part of the present invention, they are notillustrated in the drawings. The inlet-pipe K has connection by lmeansof the port b with the annular space N, surrounding the valve. Theoutlet-pipe M is connected with the central outlet-port O. Theconnecting-pipes L LL"L" are connected, respectively, with the ports PP' Pl P'", which are separated from one another by the radial divisionsc. The valve I has the inlet-recess Q formed therein, which is so shapedand proportioned as to be capable of embracing one of the ports P P P P"and a segment of the annular space N. This valve has also formed thereinthe outlet-recess R, which is shaped and proportioned that it may bemade to register exactly with one of the aforesaid ports opposite tothat with which the inlet-recess is registered and also with theoutlet-port O. As the radial divisions c are comparatively narrow, theinlet and outlet recesses would only register with opposite ports foracomparatively brief space of time, and for the most part they af- IOOford connection between two ports and the gas-supply and between the twoopposite ports and the outlet-port.

Upon the upper face of the valve I are located two studs c c',preferably separated somewhere about ninety degrees apart. Between thesestuds upon the spindle E is secured an arm S. Vhcn the meter is working, this arm engages with the stud c. If any attempt is made to workthe meter backward, the arm S moves around into contact with the stude', and the working of the valve is immediately deranged. When the valveis set up in a meteraud operatively connected, the port P connects withthe inside of one diaphragm, the port P connects with the inside of theother diaphragm, the port P with the outside of the first diaphragm, andthe port P" with the outside of. the second diaphragm.

From the description given above it will be readily seen that myimproved valve places the inside of the iirst diaphragm in connectionwith the gas-supply at the same time that the outside of the saiddiaphragm is connected with the outlet-port and that as the valverevolves the inside and outside of each diaphragm are alternately placedin connection with the gas-supply and the outlet-port. It is essentialthat no gas be within the top of the meter, as it will have a tendencyto escape through the dial of the registering apparatus. By connectingthe inlet-pipe with the annular space N, which is covered bythe valve I,I avoid the necessity of allowing gas to till the top of the meter orthe alternative, which is to cover the valve with a closed casing, whichmust be torn open to get at the valve for repairs. As in my inventionthe whole of the work is done by a single valve, I considerably reducethe number of working parts and simplify their operation. I am alsoenabled to make the valve readily removable for repairs. It will benoticed that the inlet and outlet pipes and the various connecting-pipesare provided with unions or couplings T. By unscrewing these couplingsand by detaching the bracket-standard II the valve and its connectedparts may be easily removed. The links C are always loosely connnectedwith the adjustable connection upon the tangent D, and are hence easilydisconnected when it is desired to remove the valve.

lVhat I claim as my invention isl. In a meter, a valve-seat havingacentral outlet-port, an annular inlet-space and two or more intermediateports of equal size diametrically opposite each other, in combinationwith a rotary valve provided with an inlet-recess adapted to place anyof said intermediate ports in communication with the inlet and anoutlet-recess diametrically opposite the inlet-recess adapted to placethe opposite intermediate port in communication with the outlet-port,substantially as and for the purpose specified.

2. In a meter, a valve-seat having an outlet-port and an inlet-space,and four or more ports of substantially equal size diametricallyopposite each other, in combination with a rotary valve provided withinlet and outlet recesses diametrically opposite each other and arrangedto place certain ports in communication with said inlet-space of thevalveseat and simultaneously place the diametrically opposite ports incommunication with the said outlet-port of said valve-seat,substantially as and for the purpose specified.

3. In a meter a valve-seathavingacentral outlet-port and fourequal portsdiametrically opposite each other surrounding said outletport incombination with a rotary valve provided with an inlet-recess adapted toregister with any given port of the four and an outlet-recessdiametrically opposite the said inlet-recess adapted to place theopposite intermediate port in communication with the out-- let-port,substantially as and for the purpose specified.

4f. In a meter the valve-seat J, provided with the outlet-port O; theoutlet-pipe M,com municating therewith; the annular space N, theinletpipe K, communicating therewith; the ports P, P', Pl and P, and thepipes L, L, L", and L'll communicating therewith, in combination withthe valve I, provided with the inlet-recess Q, and the outlet-recess R,substantially as and for the purpose specified.

5. In a meter the valve-seat J, provided with the outlet-port O; theoutlet-pipe M,com municating therewith; the annular space N, theinlet-pipe K, communicating therewith; the ports P, P, P, and P; thepipes L, L', L, and LH' com municating therewith and union joints orcouplings in the said pipes, in combination with the valve I, providedwith the inlet-recess Q, and the outlet-recess R, substantially as andfor the purpose specified.

G. In a meter the valve-seat J, provided with the outlet-portO;theoutlet-pipeM,com municating therewith; the annular space N, theinlet-pipe K, communicating therewith; the ports P, Pl, P", and P"l andthe pipes L, L, L, and L communicating therewith in combination with thevalve I, provided with the inlet-recess Q, and the outlet-recess R, thevalve-spindle E, suitably journaled and having one end set within arecess or step in the valve; the arm S, rigidly connected to the saidspindle; and the studs e e on the valve, substantially as and for thepurpose specified.

Brampton, Canada, April 27, 1809.

JOHN SEYMOUR.

In presence of- JoHN G. RinoUT, N. C. DIcKsoN.

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